The specific heat of ethanol is 2.44 J/(g °C). How many kilojoules of energy are required to heat 55.0 g of ethanol from -10.0°C to 68.0°C

Initially, the balloon had 3.0 liters of gas at a pressure of 400 kpa and was at a temperature of 294 k. if the balloon is cooled to 277 k and its volume decreased to 1 l, what will the new pressure in the balloon be?

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change