Chemistry, 23.01.2021 05:30 riah0122

HELP ASAP! I will give brainiest if you answer all questions correctly. 28) Choose the best answer.

Calculate the amount of heat required or released. You will need to use your Periodic Table, Table B-3 and Table B-4, in your Chemistry Reference Guide.

How much heat is required to raise the temperature of 155 g of liquid ammonia (NH3) at 200 K to ammonia gas at 300 K? Ammonia boils at 240 K.

261 kJ
-204kJ
209kJ
-88kJ
300 kJ

29) Choose the best answer.

Calculate the amount of heat required or released. You will need to use your Periodic Table, Table B-3 and Table B-4, in your Chemistry Reference Guide.

How much heat would be needed to raise the temperature of 255 grams of ice at 253 K to steam at 393 K?

-204kJ
300 kJ
209kJ
-88kJ
788 kJ

30) Choose the best answer.

Calculate the amount of heat required or released. You will need to use your Periodic Table, Table B-3, Table B-4, and Table B-5 in your Chemistry Reference Guide.

How much heat is lost when 2012 g of H2O at 400 K is changed into ice at 263 K?

300 kJ
-880 kJ
299 kJ
-204 kJ
-6201 kJ

Answers: 1

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