A cup containing 200 g of water is sitting on your dining room table. After carefully measuring its temperature to be 20°C, you leave the room. Returning ten minutes later, you measure its temperature again and find that it is now 25° C. What can you conclude about the amount of heat added to the water? (Hint: This is a trick question.)

1 If a 69 kg person ate 165 calories worth of sugar (about the calories in a typical energy drink and they converted all of that energy to heat immediately, what would be the change in temperature of that person?   A couple of useful facts for this problem.   Food calories are actually kilocalories.   1.000 kilocalorie = 4184 Joule We will assume that the average specific heat of this person's body is 3.00 J/gºC. Enter your answer in ºC with at least 2 sig figs.   Just so you are not afraid to eat or drink things, a healthy body is very good at regulating temperature- the bad news is that unless you use it right away, our bodies are very good at converting sugar into fat.

A metal sample weighing 128.00 grams and at a temperature of 98.2 degrees Celsius was placed in 45.50 grams of water in a calorimeter at 22.8 degrees Celsius. At equilibrium the temperature of the water and metal was 35.6 degrees Celsius.  What is the change in temperature of the metal (in degrees C)? (Report this as a positive value)

A metal sample weighing 123.50 grams and at a temperature of 98.8 degrees Celsius was placed in 42.50 grams of water in a calorimeter at 20.1 degrees Celsius. At equilibrium the temperature of the water and metal was 38.4 degrees Celsius. What is the change in temperature of the water (in degrees C)? (Report this as a positive value) Your Answer:

Joules (J) are a measure of energy. Chemists often measure energy in calories (cal). If 1 cal = 4.184 J, how many cal are equivalent to 48.3 J?

If 391.5 Joules of heat are added to 27.96 grams of a liquid, raising the temperature of the liquid from 29.6°C to 34.0°C, what is the specific heat capacity of the liquid with units of J/g•°C? Report your answer with 3 significant figures.

Enter your answer in the provided box. High-purity benzoic acid (CHgCOOH; AH for combustion =-3227 kJ/mol) is used as a standard for calibrating bomb calorimeters. A 1.221-g sample burns in a calorimeter (heat capacity = 1365 JPC) that contains exactly 1.700 kg of water. What temperature change is observed?

Lana is using a calorimeter to determine the specific heat of a metallic sample. She measures out 194.0 grams of her metal and heats it to 86.3 degrees Celsius. Then, she puts the sample into a calorimeter containing 13.91 grams of water at 44.2 degrees Celsius. She measures the temperature of the water in the calorimeter until the number stops changing, then records the final temperature to be 67.3 degrees Celsius. What is the specific heat of the metal? Please answer to three digits after the decimal point and include units.