Calculate amount of heat required to raise the temperature

Assignment Help Chemistry

Reference no: EM13142975

In some solar-heated homes, heat from the sun is stored in rocks during the day and then released during the cooler night. (a) Calculate the amount of heat required to raise the temperature of 78.7 kg of rocks from 25.0°C to 43.0°C. Assume that the rocks are limestone, which is essentially pure calcium carbonate. The specific heat of calcium carbonate is 0.818 J/g°C. (b) Suppose that when the rocks in part (a) cool to 30.0°C, all the heat released goes to warm the 10,000 ft3 (2.83 x 105 L) of air in the house, originally at 10.0°C. To what final temperature would the air be heated? The specific heat of air is 1.004 J/g°C, and its density is 1.20 x 103 g/mL

Reference no: EM13142975

Questions Cloud

How to achieve a precise level of gdp : Describe three problems of using fiscal policy to achieve a precise level of GDP and why is frictional unemployment inevitable in an economy characterised by imperfect job information and non-zero job-search time?

List the types of ecological interactions : List the types of ecological interactions that different species microbes can participate in, whether the interaction is positive, negative or neutral for each party, and describe a microbial example of this type of interaction in detail.

Create eliminations for consolidation due transaction : On their separate 2006 income statements, Payton and Starker reported depreciation expense of $84,000 and $60,000, respectively. Create eliminations for consolidation due to the following transaction for 2006 and 2009.

Book value and market value per share of common stock : What is the difference between book value per share of common stock and market value per share? Why does this disparity occur?

Calculate amount of heat required to raise the temperature : In some solar-heated homes, heat from the sun is stored in rocks during the day and then released during the cooler night. (a) Calculate the amount of heat required to raise the temperature of 78.7 kg of rocks from 25.0°C to 43.0°C.

How large to select to find true average time : How large a sample must he select if he wants to be 99% confident that the true average time is within 15 minutes of the sample average? Assume the standard deviation of all times is 30 minutes.

Being knocked unconscious by a blow to the head : This question has five parts. One of the cornerstones of Freudian theory is the concept of the unconscious not to be confused with the state of being knocked unconscious by a blow to the head

Describe the most probable pattern of inheritance : Assume that a particular genetic condition in a mammalian species causes an inability to digest lactose. This disorder occurs with equal frequency in males and females.

Specific instructional and management strategies : Based on the following scenario, write a 700-1050-word instructional plan in one content area of your choice (math, science, social studies, or reading/language arts) for one class period using specific instructional and management strategies.

User Account

All Pages