Approximately how much energy would it take to bring 2.75 kg of water at 5 degrees C until all the water has vaporized to become steam at 345
degrees C?

An open cart is moving along a straight frictionless horizontal track. when rain starts falling vertically into the cart, what happens to the speed of the cart?

(a) if the pressure in gas is doubled while its volume is held constant, by what factor do (i) vrms and (ii) change? (b) is it possible to boil water at room temperature (20oc) without heating it? explain.

Aphase diagram assumes is kept constant.