Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
An ideal gas of mass m in a state A to another state B via three different processes as shown in the given figure. If Q1, Q2 and Q3 denote the heat absorbed by the gas along
28
Oct
An ideal gas of mass m in a state A to another state B via three different processes as shown in the given figure. If Q1, Q2 and Q3 denote the heat absorbed by the gas along An ideal gas of mass m in a state A to another state B via three different processes [...]
Four curves A, B, C and D are drawn in the given figure for a given amount of gas. The curves which represent adiabatic and isothermal change are
28
Oct
Four curves A, B, C and D are drawn in the given figure for a given amount of gas. The curves which represent adiabatic and isothermal change are B C and D are drawn in the given figure for a given amount of gas. The curves which represent adiabatic and isothermal change are Four curves [...]
A gas is expanded from volume V0 to 2V0 under three different processes. Process 1 is isobaric process, process 2 is isothermal process and process 3 is adiabatic. Let delta U1,
28
Oct
A gas is expanded from volume V0 to 2V0 under three different processes. Process 1 is isobaric process, process 2 is isothermal process and process 3 is adiabatic. Let delta U1, A gas is expanded from volume V0 to 2V0 under three different processes. Process 1 is isobaric process process 2 is isothermal process and [...]
Refrigerator A works between -10 C and + 27 C while refrigerator B works between -20 C and +17 C, both removing 2000 J from the freezer. Which of the two is the better refrigerator?
28
Oct
Refrigerator A works between -10 C and + 27 C while refrigerator B works between -20 C and +17 C, both removing 2000 J from the freezer. Which of the two is the better refrigerator? both removing 2000 J from the freezer. Which of the two is the better refrigerator? Refrigerator A works between -10 [...]
In a cold storage, ice melts at the rate of 2 kg/h when the external temperature is 20 C. Find the minimum power output of the motor used to drive the refrigerator which just
28
Oct
In a cold storage, ice melts at the rate of 2 kg/h when the external temperature is 20 C. Find the minimum power output of the motor used to drive the refrigerator which just ice melts at the rate of 2 kg/h when the external temperature is 20 C. Find the minimum power output of [...]
A Carnot heat engine has an efficiency of 10%. If the same engine is worked backward to obtain a refrigerator, then find its coefficient of performance.
28
Oct
A Carnot heat engine has an efficiency of 10%. If the same engine is worked backward to obtain a refrigerator, then find its coefficient of performance. A Carnot heat engine has an efficiency of 10%. If the same engine is worked backward to obtain a refrigerator then find its coefficient of performance. October 28, 2020 [...]
In which case will the efficiency of a Carnot cycle be higher ? (a) When the temperature of the source is increased by delta T.
28
Oct
In which case will the efficiency of a Carnot cycle be higher ? (a) When the temperature of the source is increased by delta T. In which case will the efficiency of a Carnot cycle be higher ? (a) When the temperature of the source is increased by delta T. October 28, 2020 Category: Uncategorised [...]
The efficiency of a Carnot cycle is 1/6. By lowering the temperature of sink by 65 K, it increases to 1/3. Calculate the initial and final temperatures of the sink.
28
Oct
The efficiency of a Carnot cycle is 1/6. By lowering the temperature of sink by 65 K, it increases to 1/3. Calculate the initial and final temperatures of the sink. it increases to 1/3. Calculate the initial and final temperatures of the sink. The efficiency of a Carnot cycle is 1/6. By lowering the temperature [...]
A Carnot engine is designed to operate between 480 K and 300 K. Assuming that the engine actually produces 1.2 kJ of mehanical energy per kcal of heat absorbed, compare
28
Oct
A Carnot engine is designed to operate between 480 K and 300 K. Assuming that the engine actually produces 1.2 kJ of mehanical energy per kcal of heat absorbed, compare A Carnot engine is designed to operate between 480 K and 300 K. Assuming that the engine actually produces 1.2 kJ of mehanical energy per [...]
A refrigerator whose coefficient of performance is 5, extracts heat from the cooling compartment at the rate of 250 J/cycle. (a) How much work per cycle is required to operate
28
Oct
A refrigerator whose coefficient of performance is 5, extracts heat from the cooling compartment at the rate of 250 J/cycle. (a) How much work per cycle is required to operate A refrigerator whose coefficient of performance is 5 extracts heat from the cooling compartment at the rate of 250 J/cycle. (a) How much work per [...]