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STHS Chemistry

Cards to help pass the Chemistry Midterm at Sussex Technical High School.

On the Kelvin Scale, water freezes at 273°K and boils at 373°K. True
Kinetic energy is related to molecular motion. True
Because molecules in a solution are very close to each other, they always move in an organized, non-random fashion. False
The fundamental SI unit of energy and heat is the calorie. False
The Calories in foods actually means kilocalories. True
The specific heat of water is lower than the specific heat of metals such as steel and silver. False
If the pressure remains constant, the higher the temperature, the more likely the substance is to be in the gas phase rather than the liquid phase. True
Water at 0°C can be found in the solid OR liquid phase. True
Is heat absorbed or released when ice is melted? Absorbed
Is heat absorbed or released when water is condensed? Released
A _____________ is an instrument that uses the expansion of liquid alcohol to measure the temperature. Thermometer
________________ refers to the erratic and random movement of particles in water due to constant collision of molecules. Brownian Motion
____________ is the energy of motion. Kinetic Energy
The temperature at which the Kelvin scale starts is called _____________. Absolute Zero
A ______________ is a type of electronic sensor that uses a combination of two metals to measure temperature. Thermocouple
___________________ is reached when the temperature difference between two systems is zero. Thermal Equilibrium
In any investigation, it is important to identify the relevant objects and effects involved in that investigation, which altogether constitute the ____________. System
According to the ____________ of thermodynamics, the energy lost by a system must be gained by the surrounding or another system. First Law
According to the ______________ of thermodynamics, heat cannot be transferred from lower temperature to higher temperature. Second Law
Iron is considered a good __________ because it easily allows heat to flow across. Conductor
_______________ refers to the phase change from gas to liquid. Condensation
The amount of heat required to change one gram of a material from a liquid to a gas is called the ______________________. Heat of Vaporization
The thermal energy that is absorbed or released by a phase change is called ____________. Latent Heat
The temperature at which the air is saturated with liquid is called the ____________. Dew Point
The ___________ of water is 100°C or 212°F. Boiling Point
A 60% by weight solution of glycerol in water freezes at -28.5°F. Convert this to degrees Celsius. -33.6°C
Convert 45°C to degrees Fahrenheit. 113°F
Convert 300°K to degrees Celsius. 27°C
Convert 298°F to degrees Kelvin. 421°K
A 5 gram piece of gold changes temperature from 35°C to 78°C. How much heat does the gold absorb? 27.7 J
If 925 J of heat was absorbed by a block of iron that weighs 43 grams, calculate the temperature change. 48.9°C
One beaker contains 135 grams of water at 21°C and a second beaker contains 82.5 grams of water at 89°C. What is the final temperature of the water, after the beakers are mixed? 46.8°C
What quantity of heat is required to vaporize 110 grams of toluene at its boiling point? 45.3 Kj
The heat energy required to melt one gram of ice at 0°C is 335 J. If one ice cube has a mass of 45 grams, and you have 16 ice cubes, what quantity of energy is required to melt all of the ice cubes to form liquid water at 0°C? 241,200 J
Convert -15°C to Kelvin. 258°K
Convert 298°K to degrees Fahrenheit. 77°F
Created by: N8Dawg