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m has perature of each substance is measured. The aluminur cooled to 35 °C, while the water has cooled only to 66 °C. Explain this difference. 47. How much heat is required to warm 1.50 L of water from 25.0 °C to 100.0 °C? (Assume a density of 1.0 g/mL for the water.) 48. How much heat is required to warm 1.50 kg of sand from 25.0 °C to 100.0 °C? 49. Suppose that 25 g of each substance is initially at 27.0 °C. What is the final temperature of each substance upon absorbing 2.35 kJ of heat? a. gold b. silver c. aluminum d. water 50. An unknown mass of each substance, initially at 23.0 °C, absorbs 1.95 × 103 J of heat. The final temperature is recorded. Find the mass of each substance. a. Pyrex glass (T = 55.4°C) b. sand (T = 62.1°C) c. ethanol (T= 44.2°C) d. water (T = 32.4°C) 51. How much work (in J) is required to expand the volume of a pump from 0.0L to 2.5 Lagainst an external pressure of 1.1 atm?

m has perature of each substance is measured. The aluminur cooled to 35 °C, while the water has cooled only to 66 °C. Explain this difference. 47. How much heat is required to warm 1.50 L of water from 25.0 °C to 100.0 °C? (Assume a density of 1.0 g/mL for the water.) 48. How much heat is required to warm 1.50 kg of sand from 25.0 °C to 100.0 °C? 49. Suppose that 25 g of each substance is initially at 27.0 °C. What is the final temperature of each substance upon absorbing 2.35 kJ of heat? a. gold b. silver c. aluminum d. water 50. An unknown mass of each substance, initially at 23.0 °C, absorbs 1.95 × 103 J of heat. The final temperature is recorded. Find the mass of each substance. a. Pyrex glass (T = 55.4°C) b. sand (T = 62.1°C) c. ethanol (T= 44.2°C) d. water (T = 32.4°C) 51. How much work (in J) is required to expand the volume of a pump from 0.0L to 2.5 Lagainst an external pressure of 1.1 atm?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question 49a, b, c, d

m has perature of each substance is measured. The aluminur cooled to 35 °C, while the water has cooled only to 66 °C. Explain this difference. 47. How much heat is required to warm 1.50 L of water from 25.0 °C to 100.0 °C? (Assume a density of 1.0 g/mL for the water.) 48. How much heat is required to warm 1.50 kg of sand from 25.0 °C to 100.0 °C? 49. Suppose that 25 g of each substance is initially at 27.0 °C. What is the final temperature of each substance upon absorbing 2.35 kJ of heat? a. gold b. silver c. aluminum d. water 50. An unknown mass of each substance, initially at 23.0 °C, absorbs 1.95 × 103 J of heat. The final temperature is recorded. Find the mass of each substance. a. Pyrex glass (T = 55.4°C) b. sand (T = 62.1°C) c. ethanol (T= 44.2°C) d. water (T = 32.4°C) 51. How much work (in J) is required to expand the volume of a pump from 0.0L to 2.5 Lagainst an external pressure of 1.1 atm?
Transcribed Image Text:m has perature of each substance is measured. The aluminur cooled to 35 °C, while the water has cooled only to 66 °C. Explain this difference. 47. How much heat is required to warm 1.50 L of water from 25.0 °C to 100.0 °C? (Assume a density of 1.0 g/mL for the water.) 48. How much heat is required to warm 1.50 kg of sand from 25.0 °C to 100.0 °C? 49. Suppose that 25 g of each substance is initially at 27.0 °C. What is the final temperature of each substance upon absorbing 2.35 kJ of heat? a. gold b. silver c. aluminum d. water 50. An unknown mass of each substance, initially at 23.0 °C, absorbs 1.95 × 103 J of heat. The final temperature is recorded. Find the mass of each substance. a. Pyrex glass (T = 55.4°C) b. sand (T = 62.1°C) c. ethanol (T= 44.2°C) d. water (T = 32.4°C) 51. How much work (in J) is required to expand the volume of a pump from 0.0L to 2.5 Lagainst an external pressure of 1.1 atm?
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