Chemistry, 10.11.2021 17:30 Brendah7145
Temperature increases through the Earth's crust average about 25°C per km over a 4 km depth, giving 100°C at 4 km on top of the surface temperature. However, geothermal heat flows over a continent are not uniform. The Mponeng Gold Mine (and the other deep gold mines in South Africa) are located over a "cold spot", where the increases in temperature with depth are only 9°C per km. Use this information to explain why it has been possible to mine such depths in this region.
Answers: 3
Chemistry, 22.06.2019 00:00
What is the result of multiplying (2.5 × 1010) × (2.0 × 10-7)? a. 5.0 × 103 b. 5.0 × 10-3 c. 5.0 × 1017 d. 5.0 × 10-17
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Chemistry, 22.06.2019 17:10
Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]
Answers: 2
Temperature increases through the Earth's crust average about 25°C per km over a 4 km depth, giving...
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