I Place a 600-G Ice Cube (Initially at 0°C)in a Styrofoam

question 38

Multiple Choice

I place a 600-g ice cube (initially at 0°C) in a Styrofoam box with wall thickness 1.8 cm and total surface area 700 cm².If the air surrounding the box is at 25°C and after 6 hours the ice is completely melted,what is the conductivity of the Styrofoam material? (L_f = 80 cal/g)

• A) 7.2 × 10−⁵ cal/s⋅cm⋅°C
• B) 2.7 × 10−⁶ cal/s⋅cm⋅°C
• C) 1.7 × 10−² cal/s⋅cm⋅°C
• D) 2.4 × 10−⁴ cal/s⋅cm⋅°C
• E) 9.4 × 10−⁴ cal/s⋅cm⋅°C

Identify and manage complications in patients with bowel obstruction or constipation.

Demonstrate knowledge on the safe administration and management of nasogastric (NG) tubes.

Recognize and address patient discomfort during enema and fecal removal procedures.

Execute proper patient positioning for enema administration and fecal impaction removal.

---

Definitions:

Optic Nerve

Is a crucial part of the eye and visual system, transmitting visual information from the retina to the brain.

Adjustable Opening

A mechanism or feature that allows the size of an opening to be altered or adjusted as needed.

Pupil

The opening in the center of the iris of the eye, which adjusts in size to regulate the amount of light reaching the retina.

Upside-down Image

The phenomenon where images projected onto the retina are perceived as upright due to the brain's processing, despite being inverted.