Questio 19 If 46.1 g Cu at 11.6 °C is placed in 85.0 g H20 at 72.4 °C, what is the final temperature of the mixture? The specific heat capacities of copper and water are 0 O a. 63.6 °C Ob.71.2 °C OG 69.5 °C O d. 51.0 °C O e. 42.0 °C

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Question 19
If 46.1 g Cu at 11.6 °C is placed in 85.0 g H20 at 72.4 °C, what is the final temperature of the mixture? The specific heat capacities of copper and water are 0.385 J/g°C and 4.184 J/g°C, respectively.
O a. 63.6 °C
O b. 71.2 °C
O. 69.5 °C
O d. 51.0 °C
O e. 42.0 °C
Transcribed Image Text:Question 19 If 46.1 g Cu at 11.6 °C is placed in 85.0 g H20 at 72.4 °C, what is the final temperature of the mixture? The specific heat capacities of copper and water are 0.385 J/g°C and 4.184 J/g°C, respectively. O a. 63.6 °C O b. 71.2 °C O. 69.5 °C O d. 51.0 °C O e. 42.0 °C
Question 18
Which of the following phase transitions is/are endothermic?
1. liquid water freezing to a solid at its normal freezing point of 0.0°C.
2. the sublimation of solid carbon dioxide into the gas phase.
3. gaseous sulfur dioxide condensing into a liquid at its boiling point of -10.0°C.
O a. 3 only
O b. 2 only
Oc. 1, 2, and 3
O d. 1 only
O e. 1 and 2
Transcribed Image Text:Question 18 Which of the following phase transitions is/are endothermic? 1. liquid water freezing to a solid at its normal freezing point of 0.0°C. 2. the sublimation of solid carbon dioxide into the gas phase. 3. gaseous sulfur dioxide condensing into a liquid at its boiling point of -10.0°C. O a. 3 only O b. 2 only Oc. 1, 2, and 3 O d. 1 only O e. 1 and 2
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