Answer Happy

Homework 5 (for PC, Ext K) Name: Roster #: Due by the beginning of class after it is assigned Recall from the extension that specific heat capacity Energy input in cal mass in g xTemperature change in C 1. Which kind of material requires the most energy input to cause it to warm up by 5 °C (circle one) a. a substance with a specific heat capacity of 0.13 cal/g °C b. a substance with a specific heat capacity of 0.46 cal/g °C ca substance with a specific heat capacity of 1.00 cal/g °C a * you can assume the masses are all the same 2. Will a material with a high specific heat have a lower rate of warming or higher rate of warming? 3. Metals are good thermal conductors (when one end is heated, it transfers energy efficiently to the other end and soon the entire piece of metal is the same temperature). Based on this, what kind of specific heat capacity should metals have? low sp, heat high sp, heat you can't determine the sp, heat from this alone 4. Suppose you set a glass statue and a plastic statue out in the sun (and statues have the same mass), Draw a heating curve for each of them on the same graph and label the lines 'glass' or 'plastic'. Glass has a specific heat of 0.18 cal/g °C and plastic has a specific heat of 0.30 calig C Temperature Time mins) 5. Time is not one of the properties in the specific heat capacity equation above, but it represents which one? (it is stated in the Extension) a. energy input in cal b massing Temperature change in C