Molecular Physics | Thermodynamics Answers

Kate has 2 gallons of cold water in a bucket. The temperature of the cold water is 10°C. But Kate wants the water to be at 40°C. So obviously Kate wanted to add some hot water to the bucket. Kate also knows that water from the hot-water tap is at 70°C. How much hot water would Kate add to the cold water in the bucket so that the mixture reaches the comfortable temperature of 40°C?

150ml of a gas at 27C is heated to 77C at constant pressure.find the new volume of the gas.

A juggler throws a ball with an initial horizontal velocity of +1.1 m/s and an initial vertical velocity of +5.7 m/s. What is its
acceleration at the top of its flight path? Make sure to consider the sign when responding. Consider the upward direction as positive.

Which has more entropy: a container of salt water or a container of fresh water plus a box of salt?

What can be used instead of copper as a calorimeter and why?

Komal likes to have a tepid bath. She has 5 kg of water at 25 (degree Celcius). How many kg of water should she boil to have a comfortable bath of 45 (degree Celcius)?

a 2 kg iron block is taken from a furnace where its temparature was 672 degree celsius and placed a large block of ice at 0 degree celsius.Assuming that heat given up by iron is used to melt the ice , how much ice is melted if specific heat capacity for iron is 450 jkg-1k-1

in charles law if there is spontaneous from v1 to v2 then what effect on temperature and pressure?

A gas-filled weather balloon with a volume of 39.9 L is released at sea-level, where the prevailing conditions are 756.0 torr and 24.4°C. The balloon can expand to a maximum volume of 900 L. If the balloon rises to an altitude at which the temperature is -7.3°C and the pressure is 0.061 atm, what will the volume of the balloon be?

A 15.75g PIECE OF IRON ABSORBS 1086.75 JOULES OF HEAT ENRGY,AND ITS TEMPERATURE CHANGES FROM 25C TO 75C. CALCULATE THE SPECIFICHEAT CAPACITY OF IRON.