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Question 1 A piece of aluminum weighs 30.0g and has a specific heat of 0.900J/gC. It is placed in boiling water for 15 m
Posted: Thu Jul 07, 2022 1:52 pm
by answerhappygod
- Question 1 A Piece Of Aluminum Weighs 30 0g And Has A Specific Heat Of 0 900j Gc It Is Placed In Boiling Water For 15 M 1 (40.02 KiB) Viewed 47 times
Question 1 A piece of aluminum weighs 30.0g and has a specific heat of 0.900J/gC. It is placed in boiling water for 15 minutes and reaches a temperature of 99.5C. It is the put into 150. g of water at 25.0C. If the final temperature is 28.0C, what is the Calorimetry constant for the Calorimeter.
Question 2 What is the Delta H for the following reaction? CH4(g) + NH3(g) --> HCN(g) + 3H2(g) You have previously analyzed 3 separate reactions for their Delta H's N2(g) + 3H2(g) --> 2NH3(g) Delta H 91.8KJ/mol C(s) + 2H2(g) --> CH4(g) Delta H = -74.9KJ/mol H2(g) + 2C(s) + N2(g) 2HCN(g) Delta H = +270.3KJ/mol