A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 2.70kg of water at 22.9C . During the reaction 115.kJ of heat flows out of the bath and into the flask.
Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18J*g . Round your answer to 3 significant digits.
Using specific heat capacity to find temperature change?
2020-07-31 11:13 pm
回答 (2)
2020-07-31 11:22 pm
q = m c ΔT
115 × 1000 = (2.70 × 1000) × 4.18 × (T - 22.9)
T - 22.9 = 115 / (2.70 × 4.18)
T - 22.9 = 10.2
Final temperature, T = 33.1 °C
115 × 1000 = (2.70 × 1000) × 4.18 × (T - 22.9)
T - 22.9 = 115 / (2.70 × 4.18)
T - 22.9 = 10.2
Final temperature, T = 33.1 °C
2020-07-31 11:20 pm
q = m c (T2-T1)
1.15X10^5 J = 2700 g (4.18 J/gC) (T2-22.9 C)
T2 = 33.1 C
1.15X10^5 J = 2700 g (4.18 J/gC) (T2-22.9 C)
T2 = 33.1 C
收錄日期: 2021-04-18 18:34:57
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