You place a very hot piece of aluminum (T=120 degrees C, c=900 J/(kg*degrees C) into a 500ml beaker of water that is already at an initial temperature of 90.0 degrees C. The mass of this piece of...

You place a very hot piece of aluminum (T=120 degrees C, c=900 J/(kg*degrees C) into a 500ml beaker of water that is already at an initial temperature of 90.0 degrees C. The mass of this piece of...

I'm reviewing some practice thermodynamics questions for my upcoming physics exam but I can't figure out how to set these up properly. 1. If you mix two parts hot 80° C water with one...

Calorimetry a. How much heat needs to be taken from 0.5 kg of ethyl alcohol as a gas at its boiling point of 78.0 C to a solid at its freezing point -114 C if the latent heat of vaporization...

Explain briefly about convection and radiation

A coal engine burning at 1650 °K delivers heat energy to a reservoir at 340°K. If this same engine turns 1000 J of input energy into 670 J of useful work what is its efficiency? Considering...

A metal sample weighing 220. g is heated to 95.0 Celsius and then placed into 190. ml of water at 46.6 celcius. the final temperature of the water is 51.6 celcius. How much heat was transferred from...

If a cup of tea (190.0 ml, 86.0 celcius) is cooled by adding an ice cube (30.0 g, -10.0 celcius), what is the final temperature of the tea? The heat required to melt ice (heat of fusion) is 80.0...

Table 1 Arctic Sea Ice Loss During the 2014 Arctic Melt Season Date ...

How many homes could be heated from this source assuming heating requirements of 40 kWh/d per house?

A thermal power plant produces 82 MWh/d of excess heat energy. How many homes could be heated from this source assuming heating requirements of 40 kWh/d per house?

How much power is required to cool a house to 22oC on a 40oC day if the "leakiness" (heat-loss coefficient) of the house is 3.6 kWh/d/oC? You may assume that the air-conditioner cooling...

1. heat energy can be measured in a. joules b. calories c. "C"alories Calories d. all of theses...