THERMODYNAMIC equations FAST !!!!!

Science
Tutor: None Selected Time limit: 1 Day

1.200g of water heated from 17.0 degrees Celsius to 23.5 degrees Celsius . What is the amount of thermal energy that been transferred to that mass?

2. beaker contains 360.4g of whiten the liquid state at 100 degrees Celsius . How much energy in KJ is required to convert the liquid water to water vapours?

3. what is the amount of heat energy required to change a 40.0g ice cube at -20.0 degrees Celsius to water at 50.0 degrees Celsius ? 

Jun 5th, 2015

Thank you for the opportunity to help you with your question!

1.thermal energy=200 x 4.184 x 6.5

=5439.2 joules

2.360.4 x 100 x 2.06

=74242.4

74.2424kj

3.40 x 2.06 x 30

=2472 joule

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 5th, 2015

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Jun 5th, 2015
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