Chapter 20 – Heat and Calorimetry
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A student takes 50gm wax (specific heat = 0.6 kcal/kgºC ) and heats it till it boils. The graph between temperature and time is as follows. Heat supplied to the wax per minute and boiling point are respectively
08
Sep
A student takes 50gm wax (specific heat = 0.6 kcal/kgºC ) and heats it till it boils. The graph between temperature and time is as follows. Heat supplied to the wax per minute and boiling point are respectively A 50 Kg man is running at a speed of 18 Km H−1. If all the kinetic [...]
A block of ice at – 10°C is slowly heated and converted to steam at 100°C which of the following curves represents the phenomenon qualitatively.
08
Sep
A block of ice at – 10°C is slowly heated and converted to steam at 100°C which of the following curves represents the phenomenon qualitatively. A block of ice at – 10°C is slowly heated and converted to steam at 100°C which of the following curves represents the phenomenon qualitatively. September 8, 2021 Category: Cengage [...]
Two bodies of equal mass m are heated at a uniform rate under identical condition. Their change in temperature are shown. Then
08
Sep
Two bodies of equal mass m are heated at a uniform rate under identical condition. Their change in temperature are shown. Then Two bodies of equal mass m are heated at a uniform rate under identical condition. Their change in temperature are shown. Then September 8, 2021 Category: Cengage NEET by C.P Singh , Chapter [...]
The temperature of equal masses of three different liquids A, B and C are 30 C, 60 C and 75 C respectively. The temperature when A and B are mixed is 50 C and when B and C are mixed, it is 70 C. The equilibrium temperature when A and C are mixed will be
08
Sep
The temperature of equal masses of three different liquids A, B and C are 30 C, 60 C and 75 C respectively. The temperature when A and B are mixed is 50 C and when B and C are mixed, it is 70 C. The equilibrium temperature when A and C are mixed will be [...]
A vessel contains 110 g of water. The heat capacity of the vessel is equal to 10 g of water. The initial temperature of water in vessel is 10 C. If 220 g of hot water at 70 C is poured in the vessel, the final temperature neglecting radiation loss, will be
08
Sep
A vessel contains 110 g of water. The heat capacity of the vessel is equal to 10 g of water. The initial temperature of water in vessel is 10 C. If 220 g of hot water at 70 C is poured in the vessel, the final temperature neglecting radiation loss, will be A vessel contains [...]
Two liquids A and B are at 30 C and 20 C, respectively. When they are mixed in equal masses, the temperature of the mixture is found to be 26 C. The ratio of their specific heat is
08
Sep
Two liquids A and B are at 30 C and 20 C, respectively. When they are mixed in equal masses, the temperature of the mixture is found to be 26 C. The ratio of their specific heat is respectively. When they are mixed in equal masses the temperature of the mixture is found to be [...]
A solid material is supplied with heat at constant rate. The temperature of the material changing with heat input as shown.
08
Sep
A solid material is supplied with heat at constant rate. The temperature of the material changing with heat input as shown. A solid material is supplied with heat at constant rate. The temperature of the material changing with heat input as shown. September 8, 2021 Category: Cengage NEET by C.P Singh , Chapter 20 - [...]
Heat is supplied to a certain homogeneous sample of matter at a uniform rate. Its temperature is plotted against time as shown in the figure. Which of the following conclusions can be drawn?
08
Sep
Heat is supplied to a certain homogeneous sample of matter at a uniform rate. Its temperature is plotted against time as shown in the figure. Which of the following conclusions can be drawn? Heat is supplied to a certain homogeneous sample of matter at a uniform rate. Its temperature is plotted against time as shown [...]
A liquid of mass m and specific heat c is heated to a temperature 2T. Another liquid of mass m/2 and specific heat 2 c is heated to a temperature T. If these two liquids are mixed, the resulting temperature of the mixture is
08
Sep
A liquid of mass m and specific heat c is heated to a temperature 2T. Another liquid of mass m/2 and specific heat 2 c is heated to a temperature T. If these two liquids are mixed, the resulting temperature of the mixture is A liquid of mass m and specific heat c is heated [...]
Hailstone at 0oC falls from a height of 1km on an insulating surface converting whole of its kinetic energy into heat. What part of it will melt: (g=10m/s^2)
08
Sep
Hailstone at 0oC falls from a height of 1km on an insulating surface converting whole of its kinetic energy into heat. What part of it will melt: (g=10m/s^2) Hailstone at 0oC falls from a height of 1km on an insulating surface converting whole of its kinetic energy into heat. What part of it will melt: [...]