a) Consider the reaction B2H6(g) + 3 O2(g) → B2O3(s) + 3 H20(g) AH = -2035 kJ How much heat is released when a mixture of 9.85 g B2H6 and 7.72 g O2 is burned? b) The specific heat capacity of graphite is 0.71 J/°C g. Calculate the energy required to raise the temperature of 3.2 mol of graphite by 25.0°C. c) The specific heat capacity of graphite is 0.71 J/°C g. Calculate the energy required to raise the temperature of 30 kg graphite from 294 K to 348 K. d) The specific heat capacity of graphite is 0.71 J/°C g. Calculate the molar heat capacity for graphite.
a) Consider the reaction B2H6(g) + 3 O2(g) → B2O3(s) + 3 H20(g) AH = -2035 kJ How much heat is released when a mixture of 9.85 g B2H6 and 7.72 g O2 is burned? b) The specific heat capacity of graphite is 0.71 J/°C g. Calculate the energy required to raise the temperature of 3.2 mol of graphite by 25.0°C. c) The specific heat capacity of graphite is 0.71 J/°C g. Calculate the energy required to raise the temperature of 30 kg graphite from 294 K to 348 K. d) The specific heat capacity of graphite is 0.71 J/°C g. Calculate the molar heat capacity for graphite.
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter8: Thermochemistry
Section: Chapter Questions
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Transcribed Image Text:a) Consider the reaction
B2H6(g) + 3 O2(g) → B2O3(s) + 3 H20(g) AH =
-2035 kJ
How much heat is released when a mixture of
9.85 g B2H6 and 7.72 g O2 is burned?
b) The specific heat capacity of graphite is
0.71 J/°C g.
Calculate the energy required to raise the
temperature of 3.2 mol of graphite by 25.0°C.
c) The specific heat capacity of graphite is
0.71 J/°C g.
Calculate the energy required to raise the
temperature of 30 kg graphite from 294 K to
348 К.
d) The specific heat capacity of graphite is
0.71 J/°C g.
Calculate the molar heat capacity for
graphite.
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