Question

Calculate the change in energy for the surroundings for all four trials in Joules.

Ammonium nitrate was dissolved in water and the temperature changes are as below.

Trial (#)	Temp Before (in K)	Temp After (in K)	Mass of NH4NO3(in g)	H2O (in mL)
Trial One	294.6 K	283.8 K	4 g	25 mL
Trial Two	294.5 K	289.8 K	2g	25 mL
Trial Three	294. 9 K	288.6 K	4 g	40 mL
Trial Four	294.8 K	291.3 K	2 g	40 mL

Answer 1

443 x 4-18-x C-63) K = 1158-696 TI Surroundin is 115 8-696 V o mL 41 -3 SK 42 경 x 4-18T-x (-3.5) TRus change in enera ehetor the ndi 614, 46

clAsSMAte Date 4-18 Tlak 289.8K-2945 k 530 enきキー for she 530.4424 hi adt 4- 4 피구, te

classmate Date Po eseC hangeinemp o b Mass 2.S 4 3 2 S 4- u e Specǐtyle-一heat. --co.pacit7 ng agous. +hat woter ー10.8 K us shane