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AlphaStrike
Questions and answers by visitors named
AlphaStrike
Questions (3)
How much thermal energy is released when 500g of steam at 100° C condenses into water and cools to 50°C
Givens: m=0.5 kg t = 50
6 answers
asked by
AlphaStrike
7,500 views
How much thermal energy is released when 500 g of steam at 100 degrees celsius condenses into liquid and then cools to 50
4 answers
3,145 views
From a point A on level ground, the angle of elevation to a water tower is 17°. From point B, 60 m nearer the tower, the angle
3 answers
589 views
Answers (1)
mPb = 50g (0.05 kg) Q = 8.7 * 10^2 J T = (x-22) x being the final temperature 870 = (0.05 kg)(1.3*10^2)(x-22) 870 = 6.5(x-22) 870 = 6.5x - 143 870 + 143 = 6.5x 1013 = 6.5x Divide both sides by 6.5 x = 155.8 (Round sig digs to 2 places) x = 160
