Question

A J-Type thermocouple is placed in an oven and connected to a reference junction placed in an ice bath (0 degrees C). The output of the thermocouple circuit is 22.032mV. What is the temperature of the oven?

Answer #1

Example: A type K thermocouple is to be used to measure the
temperature of an infant incubator in the Neonatal Intensive Care
Unit (NICU). This incubator should be at a temperature of 35 C, and
the NICU itself is kept at a temperature of 23 C.
1.
If the incubator is indeed at 35
C, what will the thermocouple
voltage be?
2. If the reference junction of the
thermocouple is placed in an ice
bath, what will the thermocouple
voltage...

(a) Draw a graph of the output emf from a chromel-alumel
thermocouple (type K) and from a copper-constantan thermocouple
(type T) over the temperature range from 0 C to 550 C by reading
appropriate data from a thermocouple table. Assume that the
reference junction of the thermocouple is maintained at 0 C in an
ice bath. Draw the graphs for both thermocouples on the same piece
of graph paper.
(b) Calculate the measurement sensitivity of each thermocouple
over the temperature...

You have 2 Type T sensing junctions connected in parallel. One
junction is at 200 F and the other sensing junction is at 350 F.
The two thermocouples are connected to a CR1000 which is at 70 F.
What will be the sensed voltage

A 6.40 g sample of iron (specific heat capacity = 0.451 J/g*C)
is placed in a boiling water bath until the temperature of the
metal is 100.0*C. The metal is quickly transferred to 119.0g of
water at 25.0*C in a calorimeter (specific heat capacity of water =
4.18 J/g*C). Determine the final temperature of the water in the
calorimeter (3 significant figures).

A 50.0 g ice cube at 0.0 degrees C is placed in a lake whose
temperature is 14.0 degrees C. Calculate the change in entropy (in
joules/Kelvin) of the system as the ice cube comes to thermal
equilibrium with the lake. (c for water = 4186 J/kg-K)

A 6.40 g sample of iron (specific heat capacity =0.451 J/g*C) is
placed in a boiling water bath until the temperature of the metal
is 100.0*C. The metal is quickly transferred to 119.0g of water at
25.0*C in a calorimeter (specific heat capacity of water = 4.18
J/g*C). Determine the final temperature of the water in the
calorimeter (3 significant figures).

A 25g block of copper is placed on a 100g piece of ice:
a.) If it the copper looses 77 J as its temperature drops by 8
degrees, what is the specific heat of the copper?
b.) If the copper starts at 300K, and the ice starts at 271 K,
what will be the final temperature of the water and copper?
(Cice=4.186 J/gK, Lice=334 J/g
c.) if the copper was originally a 10 cm long rod, how much do
we...

A 25g block of copper is placed on a 100g piece of ice:
a.) If it the copper looses 77 J as its temperature drops by 8
degrees, what is the specific heat of the copper?
b.) If the copper starts at 300K, and the ice starts at 271 K,
what will be the final temperature of the water and copper?
(Cice=4.186 J/gK, Lice=334 J/g
c.) if the copper was originally a 10 cm long rod, how much do
we...

If
a 74.6 g sample of ice is placed in water and the temperature of
the ice and surroundings is 0 degrees Celsius and the pressure is 1
bar, calculate
A) delta s surroundings
B) delta s system
C) delta s universe
D) what can you conclude about the process from the value
obtained in c)?

(a) How much ice at -14.2 C must be placed in 0.150 kg of water
at 18.4 C to cool the water to 0.0 C and melt all of the ice?
___0.0318__ kg
(b) If half that amount of ice is placed in the water, what is
the final temperature of the water?
____????___ degrees Celcius

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