The calorific value of charcoal can be calculated by 6.8 × 10 6 power J / kg
I wonder if you calculate mass according to calorific value, MQ = q, M = 6.8x10 ^ 6 / (3.4 * 10 ^ 7) = 0.5kg = 500g
The calorific value of gasoline is 4.6 × 10 ^ 7J / kg. How many joules of heat can be released by completely burning 210g gasoline
Q=mq=9.66x10^6j
Totally burning 210g gasoline can release 9.66x10 ^ 6 joules of heat
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- 1. The calorific value of gasoline is 4.6 × 10 7 J / kg. When 210 g gasoline is burned completely, it can release () J heat. If all the heat is absorbed by water, it can make the gasoline more stable () kg of water, from 20 ℃ to 43 ℃, [whose specific heat capacity is 4.2 × 10 & # 179; J / (kg * ℃)]
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