Chapter 14 – Thermometry, Expansion and KTG
Sahay Sir > Question Answers > MTG NEET Physics > Part 1 > Chapter 14 - Thermometry, Expansion and KTG
A cylinder contains 12 litres of oxygen at 20 C and 15 atm pressure. The temperature of the gas is raised to 35 C and its volume increased to 17 litres. What is the final pressure of gas (in atm) ?
13
Sep
A cylinder contains 12 litres of oxygen at 20 C and 15 atm pressure. The temperature of the gas is raised to 35 C and its volume increased to 17 litres. What is the final pressure of gas (in atm) ? A cylinder contains 12 litres of oxygen at 20 C and 15 atm pressure. [...]
A vessel has 6 g of hydrogen at pressure P and temperature 500 K. A small hole is made in it so that hydrogen leaks out. How much hydrogen leaks out if the final pressure is P/2 and temperature falls to 300 K?
13
Sep
A vessel has 6 g of hydrogen at pressure P and temperature 500 K. A small hole is made in it so that hydrogen leaks out. How much hydrogen leaks out if the final pressure is P/2 and temperature falls to 300 K? Pressure versus temperature graph of an ideal gas is as shown in [...]
Pressure versus temperature graph of an ideal gas is as shown in figure. Density of the gas at point A is ρ0. Density at point B will be:
12
Sep
Pressure versus temperature graph of an ideal gas is as shown in figure. Density of the gas at point A is ρ0. Density at point B will be: Pressure versus temperature graph of an ideal gas is as shown in figure. Density of the gas at point A is ρ0 . Density at point B [...]
A cup of tea cools from 65.5∘C to 62.5∘C in 1 minute in a room at 22.5∘C. How long will it take to cool from 46.5∘C to 40.5∘C in the same room ?
12
Sep
A cup of tea cools from 65.5∘C to 62.5∘C in 1 minute in a room at 22.5∘C. How long will it take to cool from 46.5∘C to 40.5∘C in the same room ? A cup of tea cools from 65.5∘C to 62.5∘C in 1 minute in a room at 22.5∘C. How long will it take [...]
According to Newton’s Law of cooling, the rate of cooling of a body is proportional to (Δθ)n, where Δθ is the difference of temperature of the body and the surrounding and n is equal to
12
Sep
According to Newton’s Law of cooling, the rate of cooling of a body is proportional to (Δθ)n, where Δθ is the difference of temperature of the body and the surrounding and n is equal to According to Newton's Law of cooling the rate of cooling of a body is proportional to (Δθ)n where Δθ is [...]
A hot liquid is filled in a container and kept in a room of temperature of 25∘C. The liquid emits heat at the rate of 200 Js^−1 when its temperature is 75∘C. When the temperature of the liquid becomes 40∘C, the rate of heat loss is J s^−1 is
12
Sep
A hot liquid is filled in a container and kept in a room of temperature of 25∘C. The liquid emits heat at the rate of 200 Js^−1 when its temperature is 75∘C. When the temperature of the liquid becomes 40∘C, the rate of heat loss is J s^−1 is A difference of temperature of 25^∘C [...]
A hot liquid is kept in a big room. The logarithm of the numerical value of the temperature difference between the liquid and the room is plotted against time. Then the plot will be
12
Sep
A hot liquid is kept in a big room. The logarithm of the numerical value of the temperature difference between the liquid and the room is plotted against time. Then the plot will be A hot liquid is kept in a big room. The logarithm of the numerical value of the temperature difference between the [...]
A body cools in 7 min from 60 C to 40 C What will be its temperature after the next 7 min? The temperature of surroundings is 10 C.
12
Sep
A body cools in 7 min from 60 C to 40 C What will be its temperature after the next 7 min? The temperature of surroundings is 10 C. A body cools in 7 min from 60 C to 40 C What will be its temperature after the next 7 min? The temperature of surroundings [...]
A liquid takes 5 minutes to cool from 80 C to 50 C. How much time will it take to cool from 60 C to 30 C? (Temperature of the surrounding= 20 C)
12
Sep
A liquid takes 5 minutes to cool from 80 C to 50 C. How much time will it take to cool from 60 C to 30 C? (Temperature of the surrounding= 20 C) A liquid takes 5 minutes to cool from 80 C to 50 C. How much time will it take to cool from [...]
Hot water cools from 60°C to 50°C in the first 10 minutes and to 42°C in the next 10 minutes. The temperature of the surroundings is
12
Sep
Hot water cools from 60°C to 50°C in the first 10 minutes and to 42°C in the next 10 minutes. The temperature of the surroundings is Hot water cools from 60°C to 50°C in the first 10 minutes and to 42°C in the next 10 minutes. The temperature of the surroundings is September 12, 2021 [...]