Suppose the calorimeter used for the experiment has been made of a heat-conducting material (such as a metal) rather than Styrofoam. Would the measured calorimeter constant be larger or smaller?

Having just invented a new type of calorimeter, Dr. Cox needs to determine the heat capacity of the calorimeter.  She carries out the following experiment to do this: Her empty calorimeter is at a temperature of 25.0ºC.  She adds 32.502 grams of water at a temperature of 72.5ºC to the empty calorimeter and the final temperature of the calorimeter and the water is 39.5ºC.   Based on this experiment, what is the heat capacity of her calorimeter assuming units of J/ºC? Enter your answer with at least 3 sig figs.

Enthalpy changes depend on the temperature and pressure under which a process occurs. However, the enthalpy change will be different at different pressures. Therefore, chemists often deal with standard enthalpy of reaction ΔHro. The temperature and pressure conditions (standard state) for standard enthalpy are

Measurements show that the energy of a mixture of gaseous reactants decreases by 206. kJ during a certain chemical reaction, which is carried out at a constant pressure. Furthermore, by carefully monitoring the volume change it is determined that -145. kJ of work is done on the mixture during the reaction. Calculate the change in enthalpy of the gas mixture during the reaction. Be sure your answer has the correct number of significant digits. O exothermic Is the reaction exothermic or endothermic? O endothermic

Measurements show that the energy of a mixture of gaseous reactants increases by 396. kJ during a certain chemical reaction, which is carried out at a constant pressure. Furthermore, by carefully monitoring the volume change it is determined that 122. kJ of work is done on the mixture during the reaction. Calculate the change in enthalpy of the gas mixture during the reaction. Be sure your answer has the correct number of significant digits. O exothermic Is the reaction exothermic or endothermic? O endothermic

Please answer question 9 part A

make sure that the answer is in the correct number of significant digits

The distance between Sherbrooke and Montreal is 137km. However, a car driving between the two points travels 156km. Of these distances, which one is analogous to a state function?

In Part B of the experiment, a student mixes 30.0 mL of 1.1 M HC1(aq) with 30.0 mL of 1.000 M NaOH(aq) in a well-insultated calorimeter and observes that the temperature of the solution increases by 5.75 °C. These are similar conditions as the previous two problems. How many moles of water are formed? number of moles of water = mol

The heat capacity of an object indicates how much energy that object can absorb for a given increase in that object's temperature. In a system in which two objects of different temperatures come into contact with one another, the warmer object will cool and the cooler object will warm up until the system is at a single equilibrium temperature. Note the difference between the terms molar heat capacity, which has units of J/(mol-K). and specific heat, which has units of J/(g-K). Remember to use 3 significant figures for all answers unless stated otherwise in the problem. Common issues with this problem involve entering units incorrectly into the answer field. Please check this help website for a refresher on how to enter units in Mastering Chemistry: http://help.pearsoncmg.com/mastering/student/standalone/TopicsStudent/acceptable units list.htm The margin of error is 2%. Part A A volume of 75.0 mL of H₂O is initially at room temperature (22.0 °C). A chilled steel rod at 2.00 °C is placed…