A gas in a cylinder occupies a volume of 465 ml when at a pressure equivalent to 725 mm of mercury. If the temperature is held constant, what will be the volume of the gas when the pressure on it is raised to 825 mm of mercury?
0.02m3 of a gas is at 27 0C is heated at a constant pressure until the volume is 0.03 m3. Calculate the final temperature of the gas in 0C.
A gas has a volume of 20 cm3 at 270C and normal atmospheric pressure.
Calculate the new volume of the gas if it is heated to 540C at the same pressure.
At 200C, the pressure of a gas is 50 cm of mercury. At what temperature would the pressure of the gas fall to 10 cm of mercury?
A gas in a fixed volume container has a pressure of 1.6 × 105 Pa at a temperature of 27 0C.
What will be the pressure of the gas if the container is heated to a temperature of 2770C?
An immersion heater rated 600 W is placed in water. After the water starts to boil, the heater is left on for 6 minutes.
It is found that the mass of the water had reduced by 0.10 kg in that time.
Estimate the specific heat of vaporization of steam.
A metal cylinder mass 0.5 kg is heated electrically.
If the voltmeter reads 15V, the ammeter 0.3A and the temperatures of the block rises from 20 0C to 85 0C in ten minutes.
Calculate the specific heat capacity of the metal cylinder.
A 50 W heating coil is immersed in a liquid contained in an insulated flask of negligible heat capacity.
If the mass of the liquid is 10 g and its temperature increases by 10 0C in 2 minutes, find the specific heat capacity of the liquid.
A piece of copper of mass 60 g and specific heat capacity 390 J Kg-1 K-1 cools from 90 0C to 40 0C. Find the quantity of heat given out.
If 300 g of paraffin is heated with an immersion heater rated 40 W, what is the temperature after 3 minutes if the initial temperature was 20 0C? (S.H.C for paraffin = 2,200 JK -1 K-1).
