1. Air with a mass of 0.54kg initially at 20.0°C occupies a space of 0.45m^3 inside of a balloon.The gas is heated and expands at a constant pressure to occupy 1.0m^3
a. Calculate the temperature of the gas after it expands.
b. Calculate the heat added to the gas.
2. A cold room has metal and wooed chairs inside. Why do the metal chairs feel colder than the wooden chairs, even though both are at the same temperature?