Multiple Choice
What will be the final temperature in °C if a 5.00-g silver ring at 37.0 °C gives off 25.0 J of heat to its surroundings? (specific heat = 0.235 J g^-1 °C^-1)
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1. Intro to General Chemistry
Temperature
Multiple Choice
What temperature range is referred to as the 'danger zone' for foodborne illnesses?
A
40°F to 140°F
B
50°F to 150°F
C
32°F to 212°F
D
0°C to 100°C
Verified step by step guidance1
Identify the context of the problem: The 'danger zone' for foodborne illnesses refers to the temperature range where bacteria can grow rapidly.
Understand the temperature scales involved: The options provided include both Fahrenheit (°F) and Celsius (°C) scales.
Recall the specific range for the 'danger zone': In food safety, the 'danger zone' is typically between 40°F and 140°F.
Convert the Fahrenheit range to Celsius if needed: Use the formula \( T(°C) = \frac{5}{9} (T(°F) - 32) \) to convert temperatures.
Compare the given options with the known 'danger zone' range to identify the correct answer.
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