Advertisements
Advertisements
Question
Choose the correct option.
If two temperatures differ by 25° C on Celsius scale, the difference in temperature on Fahrenheit scale is
Options
65°
45°
38°
25°
Advertisements
Solution
45°
Explanation:
100 divisions on celsius scale correspond to 180 divisions on fahrenheit scale.
∴ Temperature difference of 25° C, i.e., 25
divisions will correspond to, `(25 xx 180)/100` = 45
divisions on Fahrenheit scale, i.e., 45° F.
APPEARS IN
RELATED QUESTIONS
Choose the correct option.
Range of temperature in a clinical thermometer, which measures the temperature of the human body, is
Choose the correct option.
A glass bottle completely filled with water is kept in the freezer. Why does it crack?
Choose the correct option.
If α, β and γ are coefficients of linear, area l and volume expansion of a solid then
Choose the correct option.
Consider the following statements-
(I) The coefficient of linear expansion has dimension K-1.
(II) The coefficient of volume expansion has dimension K-1.
Choose the correct option.
Water falls from a hight of 200 m. What is the difference in temperature between the water at the top and bottom of a waterfall given that the specific heat of water is 4200 J kg-1 °C-1?
Obtain an ideal gas law from Boyle’s and Charles’ law.
Define specific heat capacity.
Write the unit of specific heat capacity.
Define molar specific heat capacity.
What is a thermal expansion?
Give the expression for linear thermal expansion.
Write the unit of latent heat capacity.
Discuss the ideal gas laws.
Explain in detail the thermal expansion.
Explain Calorimetry and derive an expression for final temperature when two thermodynamic systems are mixed.
Explain in detail Newton’s law of cooling.
Calculate the number of moles of air is in the inflated balloon at room temperature as shown in the figure.
The radius of the balloon is 10 cm, and the pressure inside the balloon is 180 kPa.
The temperature of a uniform rod of length L having a coefficient of linear expansion αL is changed by ∆T. Calculate the new moment of inertia of the uniform rod about the axis passing through its center and perpendicular to an axis of the rod.
What does the temperature of a body tell us?
Which of the following is the fourth fundamental quantity introduced while studying heat?
What is the difference between temperature and heat energy?
Why is the sense of touch not sufficient to measure temperature scientifically?
