Question

Calculate the number of moles in a sample of an ideal gas whose volume is 0.452 litre at 87°C and 0.620 atm.
A gas weighing 12.5 g is contained in a constant volume vessel at 27°C and a certain pressure. The temperature is
increased to 352°C. Calculate mass of the gas released from the vessel if pressure is held constant.
An open vessel contains air at 27°C. The vessel is cooled so that mass of the air increases by 25%. Calculate​

Answer 1

Answer:

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