Problem Set 11 (Calorimetry) In a calorimetry experiment, a 60 g metal sample was heated to 100°C, and then quickly transferred to a styrofoam cup with cover and containing 100 g of water at room temperature (23°C). After carefully swirling the calorimeter, the final temperature of the water was recorded at 27°C. Calculate for the specific heat capacity (Cm) of the metal sample. Assume that the specific heat capacity of water (Cw) is 1 cal/g.C°.

Problem Set 11 (Calorimetry) In a calorimetry experiment, a 60 g metal sample was heated to 100°C, and then quickly transferred to a styrofoam cup with cover and containing 100 g of water at room temperature (23°C). After carefully swirling the calorimeter, the final temperature of the water was recorded at 27°C. Calculate for the specific heat capacity (Cm) of the metal sample. Assume that the specific heat capacity of water (Cw) is 1 cal/g.C°.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter19: Temperature, Thermal Expansion And Gas Laws

Section: Chapter Questions

Problem 20PQ

See similar textbooks

Similar questions

Table Q3 is given to collect the temperature of hot and cold water at the inlet and outlet positions in the laboratory using Tube Heat Exchanger (TD360a) by varying the cold-water flow rate to investigate the effect of cold-water flow rate on the heat exchanger’s performance. (a) Complete all the output parameters indicated in the table given in Appendix 1. (b) Draw the temperature (TH1, TH2, TC1 and TC2) on the vertical vs position (1, 2) on the horizontal axis for each flow and discuss the effect of cold water flow rate change on the exit temperature of both cold water and hot water. (c) Draw the graph of Energy Balance Coefficient and Mean Temperature Efficiency on vertical axis and cold-water flow rate on horizontal axis. Discuss the effect of flow rate on the Energy Balance Coefficient and Mean Temperature Efficiency based on your finding.
Part A Find what heat in calories is required to change 58 g of 0∘C ice to steam at 100∘C. The heat of fusion Lf for water is 80 cal/g. The specific heat capacity of water is 1 cal/g⋅∘C. The heat of vaporization for water Lv is 540 cal/g. Express your answer to two significant
B) i) In the lab there are some sample materials, as mentioned in table below. Hasan wants to identify a material in the physics lab, and he chose one material of Area 6 cm2 and 3 cm thick. He heats up that material from 290 K to 305 K. If rate of heat flow is 24 watt (J/s), then find out, through calculation, which material he has chosen. ii) In the above table, which material will conduct more energy in 120 secs?
The temperature C of a fresh cup of coffee t minutes after it is poured is given by C = 125e−0.03t + 67 degrees Fahrenheit. (a) Make a graph of C versus t. I answered ( a) correctly (b) The coffee is cool enough to drink when its temperature is 145 degrees. When will the coffee be cool enough to drink? (Round your answer to two decimal places.) min(c) What is the temperature of the coffee in the pot? (Note: We are assuming that the coffee pot is being kept hot and is the same temperature as the cup of coffee when it was poured. Round your answer to the nearest degree.) °F(d) What is the temperature in the room where you are drinking the coffee? (Hint: If the coffee is left to cool a long time, it will reach room temperature. Round your answer to the nearest degree.) °F
One-third of a mole of He gas is taken along the path abc shown as the solid line in the figure(Figure 1). a)Assume that the gas may be treated as ideal. How much heat is transferred into or out of the gas? b)If the gas instead went from state a to state c along the horizontal dashed line in the figure, how much heat would be transferred into or out of the gas? c)How does Q in part (b) compare against Q in part (a)? d)To explain this result compare the work of gas and the change in internal energy of the gas.
The pV diagram in the figure (Figure 1) shows a process abc involving 0.350 mol of an ideal gas. What was the temperature of this gas at points a, b, and c? How much heat had to be put in during the process to increase the internal energy of the gas by 1.30×104 J ?
A mug of tea is losing thermal energy at a rate of 20 W. If the externalsurface of the mug is at 60 oC with an area of 0.035 m^2, what is thetemperature of the surroundings? Take the heat transfer coefficient forair as 10 W/ m^2 K. Give your answer to two significant figures answer = 17°C please show all working out
Subject: Thermodynamics I
A student is asked to sketch a pV diagram for a gas that goes through a cycle consisting of (a) an isobaric expansion, (b) a constant-volume reduction intemperature, and (c) an isothermal process that returns the gas to its initial state. The student draws the diagram as shown. What, if anything, is wrong with the student’s diagram?
3.) An iron block weighs 5N and has a volume of 200 cm^3. What is the density of the block in kg/m^3? Topic : Understanding the World of Thermodynamic
Answer the following questions about the PV diagram shown below. Please refer to the picture. Question A: How much work is performed in the process AB? Please give the answer in joules Question B: How much work is performed in the process BD? Please give the answer in joules Question C: How much work is peformed in the process AC? Please give the answer in joules
Relating Heat, TemperatureChange, and Heat Capacity(a) How much heat is needed to warm 250 g of water(about 1 cup) from 22 °C (about room temperature) to98 °C (near its boiling point)? (b) What is the molarheat capacity of water?