Natural gas burns in air to form carbon dioxide and water, releasing heat. CH,(8) + 0,(8) - CO-(g) + H;O(g) AHxn = -802.3 kJ What minimum mass of CH, is required to heat 55 g of water by 25 °C? (Assume 100% heating efficiency.) b) 2.25 x 10°g a) 0.115 g c) 115 g d) 8.70 g

Natural gas burns in air to form carbon dioxide and water, releasing heat. CH,(8) + 0,(8) - CO-(g) + H;O(g) AHxn = -802.3 kJ What minimum mass of CH, is required to heat 55 g of water by 25 °C? (Assume 100% heating efficiency.) b) 2.25 x 10°g a) 0.115 g c) 115 g d) 8.70 g

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

Problem 73QAP: Microwave ovens convert radiation to energy. A microwave oven uses radiation with a wavelength of...

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Question

Natural gas burns in air to form carbon dioxide and water,
releasing heat.
CH,(8) + 0,(8)
- CO-(g) + H;O(g)
AHxn = -802.3 kJ
What minimum mass of CH, is required to heat 55 g of
water by 25 °C? (Assume 100% heating efficiency.)
b) 2.25 x 10°g
a) 0.115 g
c) 115 g
d) 8.70 g

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